Email Formats

{
  "mx": [
    "30 d303915b.ess.barracudanetworks.com.",
    "20 d303915a.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 a mx ip4:216.223.145.185 ip4:216.223.130.18 ip4:216.223.130.19 include:spf.ess.barracudanetworks.com -all"
  ]
}